#include <nt.h>
#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <iostream>

Data Structures
struct	Dyn3_checksum_overlay

Enumerations
enum	ChecksumCmdLayer3 { CHECKSUM_LAYER3_DO_NOTHING = 0, CHECKSUM_LAYER3_BAD = 2, CHECKSUM_LAYER3_GOOD = 3 }

enum	ChecksumCmdLayer4 { CHECKSUM_LAYER4_DO_NOTHING = 0, CHECKSUM_LAYER4_BAD = 2, CHECKSUM_LAYER4_GOOD = 3, CHECKSUM_LAYER4_GOOD_TCP_ZERO_UDP = 4, CHECKSUM_LAYER4_GOOD_TCP_ZERO_UDP_IPV4 = 5, CHECKSUM_LAYER4_GOOD_TCP_UDP_ZERO_UDP_TUNNEL = 6, CHECKSUM_LAYER4_GOOD_TCP_UDP_ZERO_UDP_IPV4_TUNNEL = 7 }

enum	FrameType { FRAME_TYPE_IPV4_TCP = 0x0 \| 0x0 \| 0x4, FRAME_TYPE_IPV4_UDP = 0x0 \| 0x0 \| 0x8, FRAME_TYPE_IPV6_TCP = 0x0 \| 0x2 \| 0x4, FRAME_TYPE_IPV6_UDP = 0x0 \| 0x2 \| 0x8, FRAME_TYPE_IPV4_TCP_TUNNELED = 0x1 \| 0x0 \| 0x4, FRAME_TYPE_IPV4_UDP_TUNNELED = 0x1 \| 0x0 \| 0x8, FRAME_TYPE_IPV6_TCP_TUNNELED = 0x1 \| 0x2 \| 0x4, FRAME_TYPE_IPV6_UDP_TUNNELED = 0x1 \| 0x2 \| 0x8 }

Functions
static uint64_t	checksum_command (ChecksumCmdLayer3 l3, ChecksumCmdLayer4 l4)

static void	handle_error_status (int status, const char *message)

int	main (int, char **)

Variables
static constexpr uint8_t	Test_packet []

Enumeration Type Documentation

enum ChecksumCmdLayer3

Valid values for layer 3 checksum command.

Enumerator
CHECKSUM_LAYER3_DO_NOTHING
CHECKSUM_LAYER3_BAD
CHECKSUM_LAYER3_GOOD

Definition at line 135 of file checksum_example.cpp.

enum ChecksumCmdLayer4

Valid values for layer 4 checksum command.

Enumerator
CHECKSUM_LAYER4_DO_NOTHING
CHECKSUM_LAYER4_BAD
CHECKSUM_LAYER4_GOOD
CHECKSUM_LAYER4_GOOD_TCP_ZERO_UDP
CHECKSUM_LAYER4_GOOD_TCP_ZERO_UDP_IPV4
CHECKSUM_LAYER4_GOOD_TCP_UDP_ZERO_UDP_TUNNEL
CHECKSUM_LAYER4_GOOD_TCP_UDP_ZERO_UDP_IPV4_TUNNEL

Definition at line 144 of file checksum_example.cpp.

enum FrameType

Valid values for a descriptor frame type.

Bit [ 0]: Value 0: Not tunneled Value 1: Tunneled

Bit [ 1]: Value 0: IPv4 or other Value 1: IPv6

Bit [3:2]: Value 0: Other Value 1: TCP Value 2: UDP Value 3: Reserved

Enumerator
FRAME_TYPE_IPV4_TCP
FRAME_TYPE_IPV4_UDP
FRAME_TYPE_IPV6_TCP
FRAME_TYPE_IPV6_UDP
FRAME_TYPE_IPV4_TCP_TUNNELED
FRAME_TYPE_IPV4_UDP_TUNNELED
FRAME_TYPE_IPV6_TCP_TUNNELED
FRAME_TYPE_IPV6_UDP_TUNNELED

Definition at line 168 of file checksum_example.cpp.

Function Documentation

static uint64_t checksum_command	(	ChecksumCmdLayer3	l3,
		ChecksumCmdLayer4	l4
	)

inlinestatic

Correctly combines layer 3 checksum command and layer 4 checksum command.

Examples:: net/checksum/checksum_example.cpp.

Definition at line 182 of file checksum_example.cpp.

Referenced by main().

static void handle_error_status	(	int	status,
		const char *	message
	)

inlinestatic

Handles and prints NT error messages, and the terminates the program.

Definition at line 190 of file checksum_example.cpp.

Referenced by main().

int main	(	int	,
		char **
	)

Definition at line 200 of file checksum_example.cpp.

Variable Documentation

constexpr uint8_t Test_packet[]

static

Initial value:

{
  0x42, 0xb3, 0xbb, 0x9b, 0x7b, 0x6b, 0x02, 0xe1,
  0x27, 0xc4, 0x33, 0x0f, 0x08, 0x00, 0x45, 0x00,
  0x00, 0x52, 0x00, 0x01, 0x00, 0x00, 0x40, 0x11,
  0x79, 0x2c, 0x73, 0x35, 0xd7, 0xbe, 0x18, 0xdf,
  0x1a, 0x71, 0x34, 0x8b, 0xcf, 0x5f, 0x00, 0x3e,
  0xce, 0xe8, 0x70, 0x69, 0x7a, 0x7a, 0x61, 0x70,
  0x69, 0x7a, 0x7a, 0x61, 0x70, 0x69, 0x7a, 0x7a,
  0x61, 0x70, 0x69, 0x7a, 0x7a, 0x61, 0x70, 0x69,
  0x7a, 0x7a, 0x61, 0x70, 0x69, 0x7a, 0x7a, 0x61,
  0x70, 0x69, 0x7a, 0x7a, 0x61, 0x70, 0x69, 0x7a,
  0x7a, 0x61, 0x70, 0x69, 0x7a, 0x7a, 0x61, 0x70,
  0x69, 0x7a, 0x7a, 0x61, 0x70, 0x69, 0x7a, 0x7a
}

IPv4 UDP packet with IPv4 checksum error and UDP checksum error. No FCS included. Size: 96 byte.

Examples:: net/checksum/checksum_example.cpp, and net/transmit_segment_dyn_descr/transmit_segment_dyn_descr_example.cpp.

Definition at line 104 of file checksum_example.cpp.

Referenced by main().

Data Structures

Enumerations

Functions

Variables

Enumeration Type Documentation

Function Documentation

Variable Documentation